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120213023213 = 1045931149341
BaseRepresentation
bin110111111110101000…
…0010010100111101101
3102111021212000022102002
41233331100102213231
53432144013220323
6131120342142045
711453663560223
oct1577520224755
9374255008362
10120213023213
1146a89132668
121b36b121925
13b44a3812ca
145b65758b13
1531d8a33828
hex1bfd4129ed

120213023213 has 4 divisors (see below), whose sum is σ = 120214277148. Its totient is φ = 120211769280.

The previous prime is 120213023207. The next prime is 120213023243. The reversal of 120213023213 is 312320312021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78726258724 + 41486764489 = 280582^2 + 203683^2 .

It is a cyclic number.

It is not a de Polignac number, because 120213023213 - 28 = 120213022957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120213023243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470078 + ... + 679263.

It is an arithmetic number, because the mean of its divisors is an integer number (30053569287).

Almost surely, 2120213023213 is an apocalyptic number.

It is an amenable number.

120213023213 is a deficient number, since it is larger than the sum of its proper divisors (1253935).

120213023213 is a wasteful number, since it uses less digits than its factorization.

120213023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253934.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 120213023213 its reverse (312320312021), we get a palindrome (432533335234).

The spelling of 120213023213 in words is "one hundred twenty billion, two hundred thirteen million, twenty-three thousand, two hundred thirteen".

Divisors: 1 104593 1149341 120213023213